Publication: Study of the decay K+ -> pi(+)pi(-)pi(+)gamma in the OKA experiment
Дата
2019
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Аннотация
A high statistics data sample of the decays of K+ mesons to three charged particles was accumulated by the OKA experiment in 2012 and 2013. This allowed to select a clean sample of about 450 events with K+ -> pi(+)pi(-)pi(+)gamma decays with the energy of the photon in the kaon rest frame greater than 30 MeV. The measured branching fraction of the K+ -> pi(+)pi(-)pi(+)gamma, with MeV is equal to (0.71 +/- 0.05)x10-5. The measured differential branching fraction over photon energy is compared with the prediction of the chiral perturbation theory to O(p4). A search for an up-down asymmetry of the photon with respect to the hadronic system decay plane is also performed.
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Study of the decay K+ -> pi(+)pi(-)pi(+)gamma in the OKA experiment / Shapkin, MM [et al.] // European Physical Journal C. - 2019. - 79. - № 4. - 10.1140/epjc/s10052-019-6797-1
URI
https://www.doi.org/10.1140/epjc/s10052-019-6797-1
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https://openrepository.mephi.ru/handle/123456789/16802
https://www.scopus.com/record/display.uri?eid=2-s2.0-85063997389&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000463240100001
https://openrepository.mephi.ru/handle/123456789/16802